Most type of renewable energy systems works in conjunction with the existing electrical grids. Also, inverter technology has an important role to have a safe and reliable grid interconnection operation of renewable energy systems. It is also necessary to generate a high quality power to the grid with reasonable cost. They also must be capable of provide high efficiency conversion with high power factor and low harmonic distortion. For this reason, the control policy must be considered. Therefore, the most important current control techniques are investigated in this paper. The ability of them to eliminate the steady state error, fast transient response and the possibility of compensation for low order harmonics is also discussed and compared to each other.
کلید واژگان :
Current Control Techniques, Grid Connected Inverter, Renewable Energy System, Harmonic Distortion
